There hasn't been nearly enough wild speculation on what the new wave might actually contain - apart from the ships I mean.
So here's a little tidbit to get the ball rolling.
Someone posted a link to a slightly better resolution shot of the new ships and their stats.
http://www.belloflostsouls.net/2015/04/breaking-x-wing-wave-7-unveiled.html
Take a look at the K-Wing's action bar - is that a boost action?
I'm pretty sure that's a boost on the Punisher, but it doesn't look quite the same on the K-Wing. Might just be the fuzzy resolution or the out-of-arc symbol getting in the way - but that's no reason not to wildly speculate about the possibility of a new action.